diff --git a/src/index.js b/src/index.js
index 8da182b..3c347a0 100644
--- a/src/index.js
+++ b/src/index.js
@@ -82,6 +82,10 @@ var Accordion = React.createClass({
     }
   },
 
+  componentWillUpdate() {
+    setTimeout(this._getContentHeight);
+  },
+
   componentDidMount() {
     // Gets content height when component mounts
     // without setTimeout, measure returns 0 for every value.